code: def get_str(self):
      in_bottle_str = (
          "N" if self.in_bottle is None else self.in_bottle.get_str()
      )
      branches_str = [branch.get_str() for branch in self.branches]
      branches_str = "+".join(branches_str)
      out_bottle_str = (
          "N" if self.out_bottle is None else self.out_bottle.get_str()
      )
      return "%s~%s~%s" % (in_bottle_str, branches_str, out_bottle_str)
  
file_path: auptimizer/src/aup/Proposer/eas/models/layer_multi_branch.py
imports: import tensorflow
  import numpy
  from .layer_cascade import LayerCascade
label_desc: Use image node_id 6 for calling the LayerMultiBranch obj's underlying member method code with example usage: obj.get_str() and returns: unknown